package day2;

/**
 * @author oldliu
 * @since 1.0
 */
public class Battery {
    //电池的牌子·
    String brand;
    int vol;//容量，单位是毫安
    public void show(){
        System.out.println("这块 电池是"+brand+",容量是"+vol+"毫安");
    }
}
